2003 Hyundai Tiburon system to lean bank 1

2003 HYUNDAI TIBURON
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BULLDAWG10002
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  • 1 POST
Engine Performance problem
2003 Hyundai Tiburon 6 cyl Front Wheel Drive Automatic

I was just wanting to know about what this means that my system is to lean on bank 1
Mar 28, 2009 at 4:10 AM
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BLACKOP555
  • ✓Experienced Mechanic
  • 10,386 POSTS
means that on bank one the o2 sensor has detected that you have too low of fuel to air ratio. which is 14.1parts air: 1part fuel.

that can be from a vaccum leak after the o2 sensor. dirty o2 sensor. bad o2 sensor or exhaust leak before teh sensor.
Mar 29, 2009 at 2:52 PM
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